Hashimoto thyroiditis is the most frequent cause of acquired hypothyroidism.
Various medications are also known to potentially cause hypothyroidism. The following medications reportedly have the potential to cause hypothyroidism:
Oral tyrosine kinase inhibitors (sunitinib, imatinib)
Immune checkpoint inhibitors (ipilimumab, pembrolizumab, nivolumab)
Other causes of acquired hypothyroidism include postpartum thyroiditis, subacute (granulomatous) thyroiditis (also known as de Quervain thyroiditis), and iatrogenic (postsurgical) hypothyroidism.
Learn more about hypothyroidism etiology.
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Cite this: Romesh Khardori. Fast Five Quiz: Hypothyroidism Practice Essentials - Medscape - Apr 11, 2022.